Specifications

74
Arc Fault Circuit A circuit breaker designed to provide protection from the
Interrupter (AFCI) effects of an arc fault by recognizing the characteristics
unique to arcing and de-energizing the circuit when an arc
fault is detected. The most effective AFCI circuit breakers are
combination AFCIs which provide protection against all three
known types of arc faults.
Siemens Combination AFCI Circuit Breaker
15
TEST
TYPE
QAFH
ARC
FAULT
GND
HACR
Circuit Breaker
Combination Ty
AFC
AFCI
O
Interrupting Rating
22kA
120V
Max.
RMS Sym.
50/60 Hz
SWD
40 C
10707150001
LED A
LED B
Test
Button
Last Known
Trip Condition
LED (A) LED (B)
OFF OFF Overcurrent
ON OFF Arc Fault
ON ON
Arc Fault to
Ground
LED Indicator
Arc Flash A condition that occurs as a result of a high energy arc fault
where heat energy is suddenly, and often explosively, produced.
Autotransformer A type of transformer in which the secondary coil is part of the
primary coil. Often the secondary voltage is adjustable via a
movable tap.
Full Voltage
Reduced Voltage
Binary-Coded Decimal Usually refers to the 8-4-2-1 code where four bits are used to
(BCD) represent decimal digits 0 through 9.
0
2
0
5
0000 0010 0000 0101
Decimal BCD
0
1
2
3
4
5
6
7
8
9
0000
0001
0010
0011
0100
0101
0110
0111
1000
1001